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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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33
arch/sparc/lib/NGpatch.S Normal file
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/* NGpatch.S: Patch Ultra-I routines with Niagara variant.
*
* Copyright (C) 2006 David S. Miller <davem@davemloft.net>
*/
#define BRANCH_ALWAYS 0x10680000
#define NOP 0x01000000
#define NG_DO_PATCH(OLD, NEW) \
sethi %hi(NEW), %g1; \
or %g1, %lo(NEW), %g1; \
sethi %hi(OLD), %g2; \
or %g2, %lo(OLD), %g2; \
sub %g1, %g2, %g1; \
sethi %hi(BRANCH_ALWAYS), %g3; \
sll %g1, 11, %g1; \
srl %g1, 11 + 2, %g1; \
or %g3, %lo(BRANCH_ALWAYS), %g3; \
or %g3, %g1, %g3; \
stw %g3, [%g2]; \
sethi %hi(NOP), %g3; \
or %g3, %lo(NOP), %g3; \
stw %g3, [%g2 + 0x4]; \
flush %g2;
.globl niagara_patch_copyops
.type niagara_patch_copyops,#function
niagara_patch_copyops:
NG_DO_PATCH(memcpy, NGmemcpy)
NG_DO_PATCH(___copy_from_user, NGcopy_from_user)
NG_DO_PATCH(___copy_to_user, NGcopy_to_user)
retl
nop
.size niagara_patch_copyops,.-niagara_patch_copyops